All CB-X chastity kits include u-ring sizes #1-5. Those who may need to size up from the largest (#1) u-ring included in a kit should consider purchasing this size Large u-ring with an inner diameter of 2 ⅛ inches.

Product details:

• Includes one size Large u-ring
• Available in black, pink, or clear
• Compatible and interchangeable with all CB-X penis chastity cages
  

Measurements:

• Inner diameter 2 ⅛ inches (54mm)

Material:

• Made from lightweight, medical-grade polycarbonate plastic

For a bigger size, shop the Size X-Large U-Ring.  If you're unsure which larger-sized ring is best for your fit, consider purchasing both the Large and X-large, which are sold in a 2-pack (includes: 1 x Large, 1 x XL).

Prior to purchasing, review our Size Guide for assistance in measuring your base circumference.